Here's the 24-hour weather outlook for today, Sept. 20, from PAGASA:
Cloudy skies with scattered rains and thunderstorms are likely in Bataan, Zambales, Metro Manila, Calabarzon and Mimaropa due to the southwest monsoon or Habagat. Cloud clusters forming off the Pacific Ocean can also become a low pressure area and stir rains.
The rest of Luzon will have fair weather with possible isolated rains due to thunderstorms.
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Visayas and Mindanao
Expect fair weather in Visayas and Mindanao with chances of rains in the afternoon or evening due to thunderstorns.